Here's one that turned up for me whilst adding a few discs to my Mary Hopkin music collection :
Mary Hopkin "Goodbye" Apple 10 from 1969
If you look close at run out grooves its actually stamped TMG 686 which is Marvin Gaye "I heard it through the Grapevine" (it does play heard it through the grapevine incase youre wondering!) Flip side is stamped with correct APPLE 10 in run out grooves (and plays the fabulous "Sparrow" track).
Bit of a scruffy copy what with the centre pushed out - interesting though.